Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:13:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 13 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:38:13: warning: unused variable 'j' [-Wunused-variable] 38 | int n,i,j,a,b; | ^